TrendViewer是一款繪圖圖表控件。它能夠嵌入到你的在線監測(由Visual Basic, Visuall C++ o或Delphi來實現)的特殊應用程序中或作為你SCADA系統(WinCC, Intouch, iFix)的附件。該ActiveX 控件可以用(10-y scales, 2 x-scales)以線性的或對數的縮放比例顯示多達512個文檔或在線數據曲線圖表。X-axis顯示時間,持續周期,角度或函數值。適用于Windows 95/Nt 4.0/200/XP操作系統。該控件的設置包括在線幫助和測試程序并提供完全免費的試用版下載。
TrendViewer is a charting and graphing component that you can integrate into your special application for online monitoring (implemented with Visual Basic, Visuall C++ or Delphi) or as Add-On into your SCADA System (WinCC, Intouch, iFix). This ActiveX Control displays up to 512 archived or online data curves with 10-y scales, 2 x-scales, all with linear or logarithmic scaling. X-axis displays time, duration, angle or value. Suitable for applications under Windows 95/Nt 4.0/200/XP. Setup includes online help and test program. Complete demo version free of charge.

- intrinsic value buffers of up to 512 curves with an unrestricted number of values
- up to 10 y-scales that can be displayed on top of one another
- strip charts in diagrams
- up to 2 x-scales to which groups of curves can be assigned independently.
- time, value and angular scale
- identification of measured points
- dynamic extension lines that are assigned to the scales
- selectable fonts for scale legends
- horizontal inscription of vertical scales
- stroke widths and patterns of curves and rulers are adjustable
You can use TrendViewer in the following manner:
- Double click on the trend area to display the user dialog in which many parameters can be modified.
- Move the cursor with the mouse key pressed down to modify the time or data scale. The curves are updated automatically!
- You can also move the trend area via the mouse. The scales are updated automatically!
- The left or the right margin of the trend area contains a time cursor. Using the mouse to drag the time cursor into the trend area will allow you to read the curve values in the data window.